Monterey Park, California climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Monterey Park's center at January lows of 47°F and July highs of 87°F, a yearly mean of 66.1°F and 15.5 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, San Gabriel (3 miles NE, 363 ft), has January lows of 46°F and July highs of 86°F.
57,996 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 69° 47°
- Feb 69° 48°
- Mar 71° 50°
- Apr 75° 53°
- May 77° 57°
- Jun 81° 60°
- Jul 87° 64°
- Aug 88° 64°
- Sep 87° 63°
- Oct 81° 58°
- Nov 74° 51°
- Dec 68° 46°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at Monterey Park's center.
What is each month like in Monterey Park?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | San Gabriel high | San Gabriel low |
|---|---|---|---|---|---|---|
| January | 69°F | 47°F | 58.1°F | 3.63 | 69°F | 46°F |
| February | 69°F | 48°F | 58.5°F | 3.92 | 68°F | 47°F |
| March | 71°F | 50°F | 60.8°F | 2.56 | 71°F | 51°F |
| April | 75°F | 53°F | 63.5°F | 0.83 | 74°F | 53°F |
| May | 77°F | 57°F | 66.6°F | 0.35 | 76°F | 58°F |
| June | 81°F | 60°F | 70.6°F | 0.06 | 81°F | 62°F |
| July | 87°F | 64°F | 75.2°F | 0.02 | 86°F | 65°F |
| August | 88°F | 64°F | 76.3°F | 0.01 | 88°F | 66°F |
| September | 87°F | 63°F | 74.8°F | 0.11 | 87°F | 64°F |
| October | 81°F | 58°F | 69.4°F | 0.62 | 81°F | 57°F |
| November | 74°F | 51°F | 62.7°F | 0.91 | 74°F | 51°F |
| December | 68°F | 46°F | 57.2°F | 2.52 | 68°F | 45°F |
In metric: a yearly mean of 18.9°C, January lows of 8°C, July highs of 30°C and 395 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around Monterey Park say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| San GabrielSan Gabriel Fire Dept | 3 mi NE | 363 ft | 66.0°F | 46°F | 86°F | 15.7 | 0 | January 4 |
| Los AngelesLos Angeles Downtown USC Campus | 6 mi W | 230 ft | 65.8°F | 49°F | 82°F | 14.3 | – | – |
| Pasadena | 7 mi N | 864 ft | 66.0°F | 46°F | 89°F | 20.1 | 0 | January 8 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in Monterey Park?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, San Gabriel (3 miles NE, 363 ft). It gets 0 inches of snow in a normal year. The last spring frost (32°F) comes after January 4 in half of years and the first autumn frost before January 2. Its record high is 112°F (1983) and its record low 22°F (1949) (kept since 1939).
The USDA's 2023 Plant Hardiness Zone Map puts Monterey Park in zone 10b across its 2 ZIP code areas.
Over a year 90% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (5.7 kWh per square metre a day, NASA POWER 2001-2020); August is the sunniest month (97%) and February the cloudiest (82%).
San Gabriel's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Monterey Park; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USC00047785; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across Monterey Park, ZIP code by ZIP code?
2 ZIP code areas lie wholly or partly in Monterey Park. On NOAA's grid 91754 is the warmest (66.1°F a year) and 91755 the coolest (66.1°F), so the city is nearly uniform. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 91754 | 10b | 66.1°F | 47°F | 87°F | 15.5 | San Gabriel (3 mi) | January 4 | January 2 |
| 91755 | 10b | 66.1°F | 47°F | 87°F | 15.4 | San Gabriel (2 mi) | January 4 | January 2 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.